JP2002153025A - Coiling method and coiling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coiling method and a coiling machine for orderly and stably coiling a coil wire, up to the end collar from the root of each pole of core without generating disturbance of coiling. SOLUTION: In the area from the root of a pole P up to the area near the end collar F, a couple of main formers 36 are moved in this area. While a coil wire W is slid at the external surface of the main formers 36, the coil wire W is guided and coiled to a predetermined position of the pole P. Meanwhile, at the area near the end collar F of the pole P, a side slide former 43 which is disposed to hold both sides of the area near the end collar F is advanced to both sides of the area near the end collar F. Consequently, a pair of main formers 36 and the side slide former 43 are made to cooperate with each other to coil the coil wire W, while being guided to the coiling position of the pole P.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding method for winding a coil wire around each pole of a star-shaped core used for a multi-pole armature of a rotating machine such as a motor or a generator, and a method thereof. And a winding machine for performing the above.

[0002]

2. Description of the Related Art As a winding machine for winding a coil wire around each pole of a star core used for a multipolar armature of a rotating machine, etc.
Conventionally, a flyer-type winding machine has been used. In this flyer-type winding machine, for example, as described in Japanese Patent Application Laid-Open No. H10-257724, a pair of main formers are disposed from above and below a pole portion of a core held substantially horizontally by core holding means. Arranged so that it can be moved back and forth so as to sandwich it, sending the coil wire from the nozzle provided at the tip of the flyer while rotating the flyer around the horizontal rotation center axis,
Fixed side formers arranged on both sides of the pole of the core,
While using the main former as a guide member, the coil wire is wound around the pole portion from the root to the tip while reciprocating the position of the main former and the flyer back and forth.

In such a winding machine in which a pair of main formers are disposed so as to sandwich the core pole portion from above and below, a former other than the upper and lower portions does not enter between the slots of the core (between the pole portions). In order to perform winding, even if the number of pole parts is relatively large and the angle between the pole parts is as narrow as, for example, 30 ° or less,
If the gap between the wound coils of adjacent poles is larger than the diameter of the wire, guide the coil wire to the base of the pole by the guide of the main former and the fixed side former,
Winding can be performed.

[0004]

However, as shown in FIG. 8, for example, when a first-layer coil wire W is wound around the pole portion 52 of the core, the main former 53 firstly contacts the root portion of the pole portion 52. The coil wire W is wound by the rotation of the flyer while gradually moving to the distal end side. Since the distal end portion of the pole portion 52 has the distal end flange portion 52a, the vicinity of the distal end portion is wound. In this case, the claw portion 53a of the main former 53 hits the front end flange portion 52a.

For this reason, in the conventional winding machine, when the main former 53 moves to the vicinity of the tip of the pole portion 52, it escapes so as to rotate outward immediately before hitting the tip flange 52a, as shown in FIG. , Coil wire W near the tip flange 52a
Was wound without a guide. For this reason, when winding the vicinity of the distal end flange portion 52a of the pole portion 52, since the coil wire W is constantly pulled toward the main former mounting side, a so-called "dive" of the coil wire occurs as shown in FIG. The coil wire W is deviated from the original winding position K1 to a position K2 on the distal end side with a gap therebetween, which causes winding disorder, and winds the second and subsequent layers of coils wound thereon. There was also a problem that the state of the state could cause a collapse.

Further, in a winding machine that performs winding using a box former that is integral and has a substantially U-shape when viewed from the front, when the box former is advanced to the base of the pole, the winding of the adjacent pole is wound. Since the outer surface of the box former comes into contact with the coil, the former cannot enter the base of the pole part, and there is a problem that it is difficult to arrange and wind the coil wires in good condition.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has been made to stably and favorably align and wind a coil wire without winding disturbance from a root portion of each pole portion of a core to a tip flange portion. It is an object of the present invention to provide a winding method and a winding machine capable of performing the above.

[0008]

In order to achieve the above object, a winding method according to the present invention comprises: a star-shaped core provided with a plurality of poles having a flange at a tip; A pair of main formers are arranged movably in the direction of the axis of the pole so as to sandwich the upper and lower surfaces of the pole from above and below, and while rotating the flyer around the axis of the winding, the main former is moved along the axis of the winding. In the winding method in which the coil wire is fed from the nozzle provided at the tip of the flyer and the coil wire is wound around the pole portion of the core, a pair of pole portions is provided from the root portion of the pole portion to the front portion near the tip flange portion. While moving the main former between them and sliding the coil wire on the outer surface of the main former, the coil wire is guided and wound at a predetermined position of the pole part, and at a position near the tip flange part of the pole part, the tip flange part is wound. It is arranged so that both sides of the neighborhood are sandwiched The side slide former is made to enter both sides near the tip flange, and a pair of main former and side slide former form a substantially square shape, and the coil wire is guided while sliding on the outer surface portion of the substantially square shape. It is characterized by winding.

[0009]

In this winding method, a pair of main formers are arranged so as to sandwich the upper and lower surfaces of the pole from above and below from the base of the pole to the vicinity of the vicinity of the tip flange. While rotating the flyer, the coil wire is fed from the nozzle of the flyer, and the main former is gradually moved along the winding axis from the base of the pole part to the vicinity of the vicinity of the tip flange, and the coil wire is moved to the outer surface of the main former. The coil wire is guided to a predetermined position of the pole while being slid, and is wound.

Further, at a position near the distal end flange portion of the pole portion, a side slide former arranged so as to sandwich both sides near the distal end flange portion is made to enter both sides near the distal end flange portion, and a pair of main former and side side are formed. A substantially square shape is formed with the slide former, the coil wire is guided while sliding on the outer surface of the substantially square shape, and the coil wire is wound around a predetermined position of the pole.

Therefore, since the side slide former does not need to enter the narrow root portion in the slot between the pole portions, even if the core has a large number of pole portions and has a narrow slot, the coil wire material can be satisfactorily formed. Can be wound. Also,
In the vicinity of the tip end of the pole portion, the pair of main formers and the side slide former cooperate to guide the coil wire to a predetermined position of the pole portion. The coil wire can be stably and favorably aligned and wound without generating disturbance.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of a main part of a winding machine that performs a winding method, FIG. 2 is an enlarged front view of the main former from the front end side, and FIG. 3 is an enlarged cross-sectional view of a main part thereof. . As shown in FIG. 1, a rail 3 is laid on a base 1 of a winding machine, and a movable base 2 is movably mounted on the rail 3 via a sliding part 2a. , A core support mechanism 5 for supporting a star-shaped core C as an object to be wound is erected at a position in front of the movable base 2.

A motor 4a is provided on the base 1 as a moving drive mechanism 4 for the moving table 2. For example, the motor 4a
A screw shaft arranged along the rail 3 is connected to the rotating shaft of a, and the screw shaft is screwed into a female screw portion fixed to the bottom of the moving table 2, and the moving table 2 is driven by the motor 4 a. Move along the rail 3.
On the other hand, the core support shaft 6 has a core C
Is mounted so as to be able to protrude upward and to be rotatable within a predetermined angle range. Although omitted in FIG. 1,
In the vicinity of the core support shaft 6, a pair of fixed side formers 19 as shown in FIG. 4 cover the outer periphery of both sides of the pole portion P to be wound, and guide the coil wire W to be wound to the position of the pole portion P. It is arranged to be.

A substantially rectangular box-shaped main body supporting portion 7 is erected on the movable base 2 and penetrates through the main body supporting portion 7 to form the outer tube shaft 1.
0, first inner pipe shaft 13, second inner pipe shaft 16, flyer 20,
The main former opening / closing mechanism 30, the side slide former supporting mechanism 40, and the like are rotatably supported substantially horizontally.
The outer tube shaft 10 is disposed along the winding axis S, and its outer peripheral portion is rotatably supported by the main body support portion 7 via a bearing 11. The end of the outer tube shaft 10 is connected to a belt 8 b, a pulley 8 a, or the like. The outer tube shaft 10 and a flyer or the like interlocked with the outer tube shaft 10 are rotated by the rotation of the drive motor 9 by being linked to the drive motor 9 via the transmission mechanism 8.

On the other hand, an annular fixed gear 12 is fixed to the outer peripheral portion on the front side of the main body supporting portion 7. Further, the first inner tube shaft 13 is inserted into the outer tube shaft 10 so as to be slidable in the axial direction, and the second inner tube shaft 16 is inserted into the first inner tube shaft 13 so as to be slidable in the axial direction. . Outer tube shaft 1 protruding forward from fixed gear 12
The flyer 20 is attached to the leading end of the “0” so as to protrude outward. As shown in FIG. 3, the flyer 20 has a guide pulley 22 for feeding the coil wire W, is provided with a nozzle 21 at the tip on the wire feed side, and feeds the coil wire W sent through the second inner pipe shaft 16 into It is introduced through an opening provided at a connection portion with the flyer 20. The flyer 20 operates to feed out the coil wire W through the nozzle 21 while rotating around the winding axis S together with the outer tube shaft 10.

A bearing 23 is attached to the other end of the flyer 20, and a planetary shaft 24 is rotatably supported by the bearing 23. Planet gears 25a, 25a, having the same diameter and the same number of teeth are provided at both ends of the planetary shaft 24. 25b is mounted on the shaft. One planetary gear 25a meshes with the fixed gear 12, and the other planetary gear 25b
It meshes with the stationary gear 26. The stationary gear 26 is a fixed gear 1
2 having the same diameter and the same number of teeth as the outer tube shaft 10
0 is rotatably mounted on the front side of the vehicle through a bearing 27. Accordingly, the rotation of the flyer 20 causes the planetary gear 25a to rotate.
Is revolved around the fixed gear 12 while rotating, the planetary gear 25b is driven to rotate in the same direction by this, and the stationary gear 26 rotates at the same speed in the opposite direction to the flyer 20 and maintains a stationary state when viewed from the fixed side. I do.

As shown in FIG. 3, a support frame 37 for the main former 36 is fixed to the front side of the stationary gear 26. The support frame 37 is formed in a rectangular frame shape, and a sliding rail 34 is fixed to the front part thereof in the vertical direction (up and down direction). A pair of sliding parts 35 is vertically separated on the sliding rail 34. The pair of main formers 36 are slidably engaged, and a pair of main formers 36 are fixed on each sliding portion 35. The pair of main formers 36 located vertically move along the vertical sliding rails 34 so as to open and close the top and bottom ends by a predetermined distance, as shown in FIG. As shown, the coil spring 38 is engaged, and the coil spring 3
8, the pair of main formers 36 are constantly urged in the closing direction.

Further, as shown in FIG. 3, inside the rectangular support frame 37, a main former opening / closing mechanism 30 provided with a conical tip 31 for opening / closing the main former 36 is disposed. The conical tip 31 is attached to the tip of the second inner tube shaft 16 via a bearing 32, and is provided on a back side of a pair of main formers 36.
3. The receiving portion 33 includes a pair of members provided inside the pair of sliding portions 35, and as shown in FIG. It operates to move up and down and open against the urging force of the spring 38.

The second inner tube shaft 16 which forms a part of the main former opening / closing mechanism 30 opens and closes the main former 36 by moving the conical tip portion 31 at the front and rear thereof back and forth. As shown in FIG. 1, a flange-shaped connecting portion 17 is attached to the end of the second inner tube shaft 16 via a bearing 17 a, and a main-former driving mechanism is attached to the connecting portion 17. Reference numeral 18 is connected to allow rotation of the second inner tube shaft 16 and slide the tube shaft in the axial direction.
As the main former drive mechanism 18, for example, a screw shaft driven by a motor is disposed in the axial direction of the second inner tube shaft 16, and the screw shaft is connected to the connecting portion 17.
, A screw shaft is rotationally driven by a motor to slide the connecting portion 17 and the second inner tube shaft 16 in the axial direction.

On the other hand, a connecting portion 42 is attached to the distal end of the first inner tube shaft 13 via a bearing 41, and the connecting portion 4
2, the end of the support frame 44 of the side slide former support mechanism 40 as shown in FIG. The support frame 44 is formed in a rectangular frame shape as shown in FIG.
The middle part on both sides is the main former opening / closing mechanism 30.
A side slide former 43 having a U-shape in plan view is attached to the distal end side of the support frame 44 by being inserted into and supported by a bush 45 fixed to the support frame 37.

The width of the two plates of the side slide former 43 is substantially equal to the width when the coil wire W is wound around the pole portion P of the core C to be wound. The position of the side slide former 43 is controlled to move back and forth by the movement of the first inner tube shaft 13 via the support mechanism 40. Therefore, a bearing 14 is provided at the end of the first inner pipe shaft 13.
A flange-shaped connecting portion 14 is attached via a, and a side slide former driving mechanism 15 allows the first inner tube shaft 13 to rotate while allowing the tube shaft to slide in the axial direction. Linked to As the side slide former driving mechanism 15, for example, a screw shaft is arranged along the axial direction of the first inner tube shaft 13, a motor is connected to the screw shaft, and a connecting portion 1 is connected to the screw shaft.
A female screw part provided on a part of the screw shaft 4 is screwed, the screw shaft is driven to rotate, and the first inner tube shaft 13 is slid in the axial direction.

Next, a winding method performed by using the winding machine having the above configuration will be described with reference to FIG. The star-shaped core C to be wound is mounted horizontally on the core support shaft 6, and the central axis of the winding machine, that is, the axis of the outer tube shaft 10, the first inner tube shaft 13, and the second inner tube shaft 16. Is set to match the central axis of the pole portion P to be wound. The distal end of the coil wire W derived from the nozzle 21 of the flyer 20 is locked by a locking portion above the core support shaft 6 (not shown).

First, the operation of the moving drive mechanism 4 causes the entire winding machine on the moving table 2 to move forward, and the main former 36 moves to the position shown in FIG. 4 or FIG. In this state, the drive motor 9 starts, and the outer tube shaft 10 and the flyer 20 rotate around the winding axis S, whereby the coil wire W is fed out from the nozzle 21 of the flyer 20 and the pole portion P It is wrapped around the root. At this time, the supporting frame 37 is moved with respect to the stationary gear 26 that is stationary.
The pair of main formers 36 are disposed so as to sandwich the upper and lower portions of the pole portions P, and the entire winding machine on the moving table 2 is moved out of the coil wire every one rotation by the operation of the moving drive mechanism 4. As a result, the coil wire W is guided to the correct winding position while sliding on the outer surface of the main former 36, and is wound.

In this state, the intermediate portion of the pole portion P is wound, and is wound up to just before the front end flange portion F of the pole portion P. When it reaches the state, the side slide former drive mechanism 1
5 is operated to move the first inner pipe shaft 13 forward, and FIG.
(C) As shown in (d), the side slide former 4
3 is moved to substantially the same position as the main former 36.
Then, the main former 36 and the side slide former 43 form a substantially square shape in a front view, and the coil wire W is wound around the outer surface portion of the substantially square shape while being guided to the winding position.

Thus, in the vicinity of the front end flange portion F of the pole portion P, the side slide former 43 and the main former 36
Cooperate with each other to guide the coil wire W to the winding position, and the pair of main formers 36 are brought into contact with the leading end flange F of the pole P immediately before the main former driving mechanism 18.
The main former opening / closing mechanism 30 operates to move up and down to move out of the winding guide position of the pole part P. At this time, the side slide former 43
Guides the coil wire W to the accurate winding position on both sides of the pole portion P, so that the coil wire W can be satisfactorily aligned and wound without winding disorder such as "jumping" of the coil wire W.

When the first layer is completely wound up to the front end flange portion F of the pole portion P, the side slide former 43 and the main former 36 are retracted to the positions shown in FIGS.
Subsequently, the flyer 20 rotates to continue the winding of the coil wire W, so that the winding of the second layer is started. In the second layer, the entire winding machine moves forward by the outer diameter of the coil wire for each rotation to wind the coil wire W, and the side slide former 43 that guides both sides of the pole portion P includes: When the winding in the vicinity of the distal end flange portion F is completed, FIG.
The advance is stopped at the position (d), and thereafter, only the main former 36 advances on the upper and lower surfaces of the pole portion P to guide the coil wire W, and the coil wire W reaches the root of the pole portion P. Wraps well. The forward movement of the main former 36 is
Since the entire winding machine on the movable base 2 is moved forward by the operation of the moving drive mechanism 4, the side slide former 43 is retreated at the same speed by the operation of the side slide former drive mechanism 15 at this time. It operates and thereby stands still at a position before the front end flange portion F of the pole portion P and waits.

As described above, from the intermediate portion to the base portion of the pole portion P, the coil wire W is guided and wound only by the main former 36 positioned above and below the core C. The coil wire W can be satisfactorily wound even in a slot having a very large number of portions, for example, a very narrow slot in which the angular interval between the pole portions is less than 30 °. Further, in the vicinity of the distal end flange portion F of the pole portion P, the main former 36 and the side slide former 43 cooperate to guide the coil wire W to a correct winding position and perform winding.
The coil wire can be wound in a well-aligned state without causing the coil wire to jump or collapse easily in the vicinity of the distal end flange portion F of the pole portion P.

[0028]

As described above, according to the winding method and the winding machine of the present invention, from the middle part of the pole part to the base part, only the main formers located above and below the core are used to form the coil wire. Since the guiding is performed and the winding is performed, the side slide former does not need to enter the narrow root portion in the slot between the pole portions. Even if the core has a large number of pole portions and has a narrow slot interval, it is satisfactory. Can be wound with a coil wire. In addition, in the vicinity of the tip end of the pole portion, the pair of main formers and the side slide former cooperate to guide the coil wire to a predetermined position of the pole portion. No coiling disturbance occurs, and the coil wire can be stably and favorably aligned and wound.

[Brief description of the drawings]

FIG. 1 is a side view with a partial cross section of a winding machine showing one embodiment of the present invention.

FIG. 2 is a front view of the winding machine as viewed from the front side of the main former 36;

FIG. 3 is an enlarged cross-sectional view of a distal end portion of a winding machine including a flyer 20, a main former opening / closing mechanism 30, and the like.

FIG. 4 is a side slide former supporting mechanism 40 and a core C;
FIG.

FIG. 5 is a cross-sectional view corresponding to FIG. 3 in a state where a main former opening / closing mechanism 30 is opened.

FIG. 6 is a plan view corresponding to FIG. 4 in a state where the side slide former 43 has been moved to the distal end flange portion F of the pole portion P.

7A and 7B show steps of a winding method, in which FIG. 7A is a plan view showing a root portion of a pole when it is wound, FIG.
(C) is an explanatory plan view showing the intermediate portion of the pole when being wound,
(D) is an explanatory view of the same side, (e) is an explanatory plan view when the tip of the pole is wound, and (f) is an explanatory view of the same side.

FIG. 8 is an explanatory side view when a coil wire W is wound around a pole portion 52 of a conventional core.

[Explanation of symbols]

 4-Movement drive mechanism 9-Drive motor 10-Outer tube shaft 13 First inner tube shaft 14-Connector 15-Side slide former drive mechanism 16-Second inner tube shaft 17-Connector 18-Main former drive mechanism 20- Flyer 21-Nozzle 30-Main Former opening / closing mechanism 31-Cone tip 34-Sliding rail 35-Sliding part 36-Main former 37-Support frame 40-Side slide former support mechanism 41-Bearing 42-Connecting part 43-Side Slide former 44-support frame W-coil wire C-core P-pole F-tip flange S-winding axis

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5H603 AA09 BB01 BB02 BB12 CC11 CC17 CD21 CE01 5H615 AA01 BB01 BB02 BB14 BB16 PP06 PP12 QQ02 QQ19 SS11

Claims (5)

[Claims] 1. A pair of main formers having a plurality of poles provided with a plurality of poles provided with a tip flange is held substantially horizontally, and a pair of main formers is sandwiched between upper and lower surfaces of the poles from above and below. The coil wire is fed out from a nozzle provided at the end of the flyer while rotating the flyer around the winding axis and moving the main former along the winding axis. In the winding method of winding a coil wire around the pole portion of the core, a distance from a root portion of the pole portion to a position near the front end flange portion is short,
The pair of main formers are moved between them, and the coil wire is guided and wound at a predetermined position of the pole portion while sliding the coil wire on the outer surface of the main former, and a tip flange portion of the pole portion is formed. In the vicinity of the position, the side slide formers disposed so as to sandwich both sides near the distal end flange portion are made to enter both sides near the distal end flange portion, and the pair of main formers and the side slide formers substantially A winding method comprising forming a character shape, and guiding and winding the coil wire while sliding the coil material at an outer surface portion of the substantially square shape. 2. A core holding means for holding a star-shaped core having a plurality of poles, a flyer rotatably arranged around a winding axis of the poles to feed out a coil wire, and A pair of main formers arranged so as to sandwich the lower surface from above and below to guide the coil wire to the winding position by sliding the coil wire on the outer surface, and bringing the main former into and out of contact with the pole portion along the winding axis line And a main former moving means for moving the coil wire around the pole portion, wherein the pole wire portion is disposed so as to sandwich both sides of the pole portion in a slot between the pole portions. A side slide former movably disposed along the winding axis of the pole portion, and a side slide former moving means for independently moving the side slide former in a direction of coming into contact with and separating from the pole portion along the winding axis. And that Winding machine to be. 3. The winding device according to claim 2, wherein the main former moving means is provided with a main former opening / closing mechanism for opening and closing the pair of main formers so as to vertically move between the inside and outside of the pole portion. Wire machine. 4. The side slide former moving means includes a first inner pipe shaft slidably inserted inside an outer pipe shaft supporting a flyer, and a side for axially moving the first inner pipe shaft. It has a slide former drive mechanism, a connecting part attached to the end of the first inner tube shaft via a bearing, and a support frame connected to the connecting part and having the side slide former attached to the end. The winding machine according to claim 2, wherein: 5. The main former opening / closing mechanism comprises: a second inner pipe shaft slidably inserted inside an outer pipe shaft of a flyer; and a conical tip provided at a tip of the second inner pipe shaft. A supporting frame that operates so as to be relatively stationary when the flyer rotates, a sliding rail mounted perpendicular to the winding axis at the end of the supporting frame, and slidably engaged with the sliding rail. The winding machine according to claim 3, further comprising: a pair of sliding portions that support the pair of main formers.